I was really looking forward to the AOL deal, so I'm quite disappointed right now. Hopefully, it was a fluke and conversions will improve.
It could be caused by the shorter ad (had to put the URL in the ad) and/or the differences between AOL and Google users.
Maybe it's product specific.
What are others seeing?
What's nice about Google is that their site draws enough traffic to make opting out of partner distribution a viable option. That's not the case with Overture.